HEADS UP: Beware of dragons in module loader code!

Peter Wemm peter at wemm.org
Mon May 17 15:37:40 PDT 2004

On Monday 17 May 2004 02:31 pm, Peter Wemm wrote:
> On Sunday 16 May 2004 06:36 pm, Peter Wemm wrote:
> > I've committed the support changes and enabled the new module
> > loader, but beware!  It does still blow up!  Consequently, I did
> > *NOT* remove the 'NO_MODULES' override in GENERIC etc because there
> > are a number of system daemons that will try and load things during
> > startup.  If this suddenly started loading modules, it Would Be A
> > Bad Thing.
> >
> > On an unrelated note, I could really use some eyes looking at the
> > sys/kern/link_elf_obj.c file.  Somewhere, I have a bug (or a series
> > of bugs) that is causing significant memory trashing.
> Turns out that there were multiple bugs, some in my code (which I
> fixed as a side effect of something else), and the big one was in the
> kernel linker itself (not my bug! :-).
> Anyway, the guts of kldload(8) support is there now.  Now for
> kldxref(8) and loader(8).  Whee.

Beware, I've turned modules on for GENERIC and NOTES.  I've tested a 
couple of things including:  usb, ums (for dependency test on usb), 
vinum, md and a dummy test module.

oops. Footnote.  sound just blew up for me.  Anyway, I've left it all 
turned on for the moment.

Peter Wemm - peter at wemm.org; peter at FreeBSD.org; peter at yahoo-inc.com
"All of this is for nothing if we don't go to the stars" - JMS/B5

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